Re: [PATCH] dt-bindings: Add missing array size constraints

Greg Kroah-Hartman
2021-01-05T13:03:48Z

On Mon, Jan 04, 2021 at 04:02:53PM -0700, Rob Herring wrote:
> DT properties which can have multiple entries need to specify what the
> entries are and define how many entries there can be. In the case of
> only a single entry, just 'maxItems: 1' is sufficient.
>
> Add the missing entry constraints. These were found with a modified
> meta-schema. Unfortunately, there are a few cases where the size
> constraints are not defined such as common bindings, so the meta-schema
> can't be part of the normal checks.
>
> Cc: Jens Axboe <axboe@kernel.dk>
> Cc: Stephen Boyd <sboyd@kernel.org>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
> Cc: Chanwoo Choi <cw00.choi@samsung.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> Cc: Jonathan Cameron <jic23@kernel.org>
> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Cc: Ulf Hansson <ulf.hansson@linaro.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Ohad Ben-Cohen <ohad@wizery.com>
> Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Rob Herring <robh@kernel.org>

<snip>

> diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> index 247ef00381ea..f76b25f7fc7a 100644
> --- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> @@ -83,6 +83,7 @@ properties:
> Phandle of a companion.
>
> phys:
> + maxItems: 1
> description: PHY specifier for the USB PHY
>
> phy-names:
> diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> index 2178bcc401bc..8e2bd61f2075 100644
> --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
> @@ -71,6 +71,7 @@ properties:
> Overrides the detected port count
>
> phys:
> + maxItems: 1
> description: PHY specifier for the USB PHY
>
> phy-names:
> diff --git a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> index 678396eeeb78..f506225a4d57 100644
> --- a/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> +++ b/Documentation/devicetree/bindings/usb/ingenic,musb.yaml
> @@ -40,7 +40,7 @@ properties:
> - const: mc
>
> phys:
> - description: PHY specifier for the USB PHY
> + maxItems: 1
>
> usb-role-switch:
> type: boolean

Any reason you dropped the description for this entry, but not the other
ones above?

> diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> index 388245b91a55..adce36e48bc9 100644
> --- a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
> @@ -15,13 +15,14 @@ properties:
> - const: ti,j721e-usb
>
> reg:
> - description: module registers
> + maxItems: 1
>
> power-domains:
> description:
> PM domain provider node and an args specifier containing
> the USB device id value. See,
> Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
> + maxItems: 1
>
> clocks:
> description: Clock phandles to usb2_refclk and lpm_clk

Same here, why remove the description?

thanks,

greg k-h